Ball-cage for ball-bearings.



V. E. WESTERBERG.

BALL CAGE FOR BALL BEARINGS.

APPLICATION man SEPT. 3. l9l5= 1,9930 Patented Jan. 9,1917.

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BALL-QAGE FDR BALL-BEARINGS.

senses.

Application filed September 3, 1915, Serial Ito 48,752.

have invented new and useful Improvements Bell-fiages for Ball-Bearings, of which the i ollowlng is a specification.

This invention relates to ball cages for FoalYhearings having two rows of balls and has for its object to provide bail cage of character which is simple and strong in construction and which may yield to some extent for the pressure of the bails, thereby reducing the friction between the balls and the hall cage to a snininnun.

With these and other objects in view the invention consists, chiefly, in the combination with two rings of sheet-metal adapted to be placed outside the two rows of balls and provided with means to keep the balls gapert, of a ring adapted to be inserted be tween the two rows of balls and provided with means for securing the outer rings to gether.

Uther details of the invention are hereinefter described and the novel'features are "pointed out iii-the claims.

In the accompanying drawings, Figure 1 shows is part of'a hall cage the intermediate ring oi which being corrugated to form seats for the hails. Fig. 2 shows a part of a ball cage with a plane intermediate ring. Figs. 3, 35 3 3% and 3" show segments of an mites cage ring in difierent' progressive stages oi manufacture. Fig 4; shows a oi the intermediate iii-he ball cage consists of two outer 10f sheetrmetai and en ilnGCii ring; 2,, likewise formed of shoe metal. 2* 1ci-Qis provided its edge n while the 1 2 is provided with tongues o bent iiterneteiy to-the one side and the and said channelshaped pi emons 4 thereby securing the rings 1 tog-e 1r. The j cim we. arrangement of he pro ections i areshown in the Fig. 3 group in which the I 5, a, d, 6 illustrate difierent a manufacture of the sheet-metal he first operation {see part a) stamping out a. ring of sheetd, at its outer edge, with PEG- ch are adopted form the mid zcrovided Specification of Letters Eatent.

Patents at its inner edge, with other projections adapted to form ears 5 to retain the-projecr tions it ofthe finished cagering in position. The second operation (see part5) involves the cutting out of the wi projections f as well asi the forming of the lateral iaps g g of the projections at tne inner circumference of thering-sha'ped portion 1. In the third operation (see part f0) the wings f f and lapsg' g are bent *at right angles to the surface of the ringshaped portion 1. In the fourth operation (see part d) the larger f is foldedfon its base line while the smaller: wing f is bent toward the larger wing thereby formingfat the inside of the bracket f a triangular opening to receive one of the tongues exten'ding from the intermediate ring 2; Thus, the projections i as well asthe ears 5 are finished. In the fifth and last operation (see part 6) the edges of w thering-shaped portion are turned up so that the projections A} and ears 5 will lie at "r-ight' angies tothe surface of the ring portion and the iving 7' of each projection i vvili enter and be held in position by the oppositely situated ears 5. The outer ring is new finished.

In manufacturing the 'inter niediate' ring 2 a ring-shaped port-ion I aving a number of tongues 3 correspondin; to the'total nrirn ber of projections of the two rings 'lI-is' first stamped out from s'heet-inetei piece. The tongues are then beat right'angles to the surface of the ring siieped portionfal ternateiy to the one side and the other. In or before the bending operation the to goes 3 may be strengthened by forming hem with a triangular cross-section at their baseportion and along a desired part of their length. Furthermore, the end of each tongue may he bent so as to form a hill in The rings 1 are then placed outside the rows of balls in such amanner that the tongues 3 will lie opposit'e'the tz'iengnlar openings formed by the pro ections or separators 4. The rings 1 are then pressed together thereby causing the tongues 3'to enter said triangular openings and strike the ring-shaped portions 1. By further pressure the ends of the tongues will be bent so that they will lie closely against the inner surface of said ring-shaped portions 1 and will enter the opening between said inner surface and the wings f f of the projections 4: thereby rigidly securing the rings 1 together.

It should be noted that modifications may be made in details without departing from the principle of the invention.

Having thus described the nature of my invention, What I claim as new, and desire to 1 secure by Letters Patent, is

1. A ball cage for ball bearings having i two rows of the balls, comprising two rings of sheet-metal having means for separating the balls and placed outside the ball rows, and a third ring, likewise of sheet-metal, disposed between said outer rings and provided with means for securing said outer rings together, substantially as described.

2. A ball cage for ball bearings having two rows of balls, comprising two rings of sheet-metal having means for separating the balls and a third ring of sheet-metal adapted to secure the outer rings together, the means for separating the balls consisting of wings extending across the rings and supported by brackets bent at right angles from the edges of the rings, substantially as described.

3. A ball cage for ball bearings having two rows of balls, comprising two rings of sheet-metal, placed outside the rows of balls and a third ring of sheet-metal disposed between the rows of balls, the first-mentioned rings being provided with wings to separate the balls and brackets to support said wings and further provided with means to retain said wings in position.

4. A ball cage for ball bearings having .two rows of balls, comprising two rings of sheet-metal, placed outside the rows of balls and a third ring of sheet-metal disposed between therows of balls and having means for securing said rings together, the first mentioned rings being provided with wings curing the outer rings together, said tongues extending from the outer edge of the inter mediate ring and being bent alternately to the one side and the other.

6. A ball cage for ball bearings having two rows of balls, comprising two outer rings of sheet-metal having wings for separating the balls, and an intermediate ring having tongues for securing the outer rings together, said wings being folded so as to form openings to receive the tongues of the intermediate ring.

7. A ball cage for ball bearings having two rows of balls comprising two outer rings having wings to separate the balls, and an intermediate ring having tongues for securing the outer rings together and formed with seats for the balls.

In testimony whereof I, the said VIG'ron EMAnUEL WESTERBERG, have hereunto set my hand in the presence of two subscribing witnesses.

VICTOR EMANUEL WESTERBERG.

Witnesses:

IVAR LAIsFA'N,

DANI'IZ RYDBECK.

'ring of sheet-metal having tongues for se- 

